Coke-drawing machine.



PKTEN-TED MAY 12, 1903..

J. A. HEBB. 00KB DRAWING MACHINE.

APPLICATION FILED AUG. 14, 1902.

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J. A. HBBB.

111 1-311151)v MAY 12, 1903.

COKE DRAWING MACHINE. AIPLIOATIOH FILED 1110.14.1902.

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Patented May 12, 1903,

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; ATENT JOHN A. HEBB, OF UNIONTQWN, PENNSYLVANIA, ASSIGNOR TO THE H'EBB COKE DRAWER CO OF UNIONTOWN, PENNSYLVANIA.

COKE-DRAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 728,101, dated May-12, 1903.

Application filed August 14,1902.

To all whom it may concern.-

Be it known that 1, JOHN A. HEBB, a citizen of the United States, residing'at Uniontown, in the county of Fayette and State of Pennsylvania, haveinvented certain new and useful Improvements in (Joke-Drawing Ma-v chines, of which the following is a specification, reference being had therein to the accompanying drawings, forming part of this specification, in which-- V Figure l isa plan View of my improved coke drawing machine, showing it in position in front of an oven-door, portions of the convey ing mechanism and the beamheing broken away. Fig. 2 is a vertical longitudinal section on the line II II of Fig. 1. Fig. 3 is a detail view showing the beam supporing roller... 7

Fig. 4 is a sectional View at right angles to Fig. 2, indicated by the line IV IV of Fig. 1. Fig. 5 is a partial similar view,on an enlarged scale, showing one of the clutch mechanism in engagement. My invention relates to apparatus for drawing coke from the oven wherein a traveling structure is provided with a reciprocating beam having a rake-head adapted to be extended into and withdrawn from the oven to empty the contents therefrom. The present application refers more'particularly to the means for imparting movement to the rakebeam. Related subject-matter isembodied' in separate applications bearing the serial numbers 119,617, 119,619,119,62,0, 120,559, and 125,644.

Referring now to the drawings, Arepresents' the framework of a portablecarriage carrying a turn-table B, upon which are mounted the various manipulative portions of the machine.

Mounted in suitable bearings is a main shaft 4, driven at one end bya suitable prime mover, as a steam-engine. Centrally mounted in step-box 6 is a vertical shaft 7, in driving engagement with shaft 4 by bevel-gears 9 10, by which shaft 7 is continuously driven. The beam-su pportin g and beam manipulating framework and mechanism are mounted on the two main standards 22-22 at each side of the central shaft 7, which standards are seo the fo y ro 3- cured to the upper side of the turn-table and Serial No. 119,618- (No model.)

are provided at their upper portion with pillow blocks or bearings 23, in which is mounted the cross-shaft 24, provided at its middle portion centrally, above the center of the, ma-

chine, with driving-pinions 25, in driving endriving-pinions. The forward end of the beam is provided with, a pivotally-attached rake-head 31, adapted to fold backwardly on coming into contact with "the coke on entering the oven and to be automatically extended by tension of a spring 32 at the back end of the beam and connected with the arms 35 Oneach side of the beam, freely journaled on shaft 24, are the conical friction-drums 36, provided on their inner portions with peripheral bevel-teeth 37, the teeth of both of such drums being in constantengagement with a driving bevel gearwheel 38, securedto theLupper end of the shaft 7, by which both friction-drums are constantly driven iu'opposite directions. The hub of each drum-bears outwardly against a collar 39, securedto shaft 24, by which the teeth 37 of the drum are held in mesh with driving-wheel'3S.. Beyond the friction-drums at each side is a surrounding friction-sleeve 40, each of'whichis providedwith ahub portionin driving engagementwith shaft 24by a spline oi key 41, so that when either of such 7 sleeves is brought into frictional engagement with its drum by shifting thesleeve upon the drum, it will transmit movement to shaft 24 inone direction or the other, according to which drum36 is utilized; .The shifting oper} ation is secured through lever 42, .pivot'ed a t 43 and connected at 44 to a shifting bar 45,

mounted in suitable bearings on the upright supports 22 and provided with forks 46, en-

gaging collars or flanges on the hub of sleeve either direction but one of the frictionclutches will be engaged, and by adjusting the sleeves 40 so that in their intermediate inoperative position they arej ust clear of the friction-drums the necessary movement of lever 42 is reduced to a minimum. By these meansuponholdingoneof'thepairof clutches in contact the power of shaft 7 will be imparted through bevel-wheel 38, drum 36, to its connected sleeve 40, and consequently to shaft 24, rotating pinions 25 in one direction, so as to carry the beam into the oven the desired distance when the clutch is released. Upon reversing the operation the opposite pair of clutches are thrown into engagement, consequently reversing the rotation of pinions 25 and withdrawing the beam as far as necessary to effect the withdrawal of the coke by the rake, when the clutches are again thrown out of engagement or will become antomatically disengaged at any point by merely releasing pressure on the clutches. When the rake has been extended to the desired point in the oven and lowered upon the coke, arapid alternative engagement of the clutches will impart a corresponding reciprocating movement of short range to the beam, when the points of the rake will be worked down into the coke, the pivotal joint providing for the longitudinal movement. The inner end of the beam is raised and lowered by operative mechanism under the control of the operator, so that the height of the rake may be varied at varying positions of the beam; but such mechanism does not form per se any part of the present invention.

Having described my invention, what I claim is 1. In a coke-drawing machine; mechanism for transmitting longitudinal movement to the beam consisting of a driving-shaft, a driving-pinion secured to the shaft,toothed wheels loosely journaled on the shaft and provided with clutch portions, clutch devices in spline engagement with the shaft, adapted to engage said portions, and means for driving the toothed wheels in opposite directions, substantially as set forth.

2. In a coke-drawing machine; mechanism for transmitting longitudinal movement to the beam consisting of a driving-shaft, a driving-pinion secured to the shaft, bevel-wheels loosely journaled on the shaft and provided with clutch portions, clutch devices in spline engagement with the shaft adapted to engage said portions and means for driving the toothed wheelsin opposite directions,substan -tially as set forth.

3. In a coke-drawing machine; mechanism for transmitting longitudinal movement to the beam consisting of a driving-shaft, a driving-pinion secured to the shaft, bevel-wheels loosely jonrnaled on the shaft and provided with clutch portions, clutch devices in spline engagement with the shaft adapted to engage said portions, and a driving bevel-wheel in engagement with the bevel-wheels, substantially as set forth.

4. In acoke-drawing machine; mechanism for transmitting longitudinal movement to the beam consisting of a driving-shaft, a driving-pinion secured to the shaft, bevel-wheels loosely journaled on the shaft, and provided with frictional clutch-faces, movable clutch members in spline engagement with the shaft adapted to engage said faces, and a driving bevel-wheel'in engagement with the bevelwheels, substantially as set forth.

5. In a coke-drawing machine; mechanism for transmitting longitudinal movement to the beam consisting of a driving-pinion secured to the shaft and adapted to engage a rack on the beam, bevel-wheels loosely journaled on the shaft and provided with tapering frictional clutch-faces, movable clutch members in spline engagement with the shaft, and provided with similarly-tapered faces adapted to engage the faces of the bevel-wheel clutch members, and a driving bevel-wheel in engagement with the bevel-wheels,substam tially as set forth.

(5. In a coke-drawing machine; mechanism for transmitting longitudinal movement to the beam consisting of a driving-shaft, a driving-pinion secured to the shaft and adapted to engage a rack on the beam, bevel-wheels loosely journaled on the shaft and provided with tapering frictional clutch-faces, movable clutch members, means for shifting said clutch members alternately into contact, and a driving bevel-wheel in engagement with the bevel-wheels, substantially as set forth.

7. In combination with a reciprocating beam provided with a longitudinal rack, a driving-shaft, a pinion secured to the shaft and in engagement With the rack, bevelwheels loosely journaled on the shaft and provided with frictional clutch-faces, movable clutch members in spline engagement with the shaft adapted to engage said faces, and a driving bevel-wheel in engagement with the bevel-wheels, substantially as set forth.

8. In combination with a reciprocating beam provided with a longitudinal rack; a driving-shaft, a pinion secured to the shaft and in engagement with the rack, links engaging the shaft and provided with a roller adapted to bear upon the beam, bevel-wheels loosely journaled on the shaft and provided with frictional clutch-faces, movable clutch members in spline engagement with the shaft adapted to engage said faces, and a driving bevel-wheel in engagement with the bevelwheels, substantially as set forth.

In testimony whereof I afix my signature in presence of two witnesses.

JOHN A. HEBB.

Witnesses:

J AS. J. IVICAFEE, C. M. CLARKE. 

